Possible heat sources for a storage-type water heater include:
A. a separate boiler.
B. solar panels.
C. its own input source and controls.
D. All are correct.
Answer: D
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Without enzymes, most of the necessary chemical reactions would not take place in our bodies
Indicate whether the statement is true or false
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Resistance is the ____________________ of conductance
Fill in the blank(s) with the appropriate word(s).
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The Constitution vests with the Congress the authority to regulate foreign relations
Indicate whether the statement is true or false
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An example of isomorphic substitution would be the substitution of _____ for _____.
a. calcium, hydrogen b. silicon, oxygen c. potassium, aluminum d. aluminum, silicon
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